SemaDeclAttr.cpp revision 60acea49c1343e5494edb6da20cac6f9d0b6cfb0
16b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===--- SemaDeclAttr.cpp - Declaration Attribute Handling ----------------===// 26b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 36b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// The LLVM Compiler Infrastructure 46b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 56b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file is distributed under the University of Illinois Open Source 66b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// License. See LICENSE.TXT for details. 76b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 86b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 96b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file implements decl-related attribute processing. 116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 142d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 1582d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov#include "TargetAttributesSema.h" 166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "clang/AST/ASTContext.h" 17384aff8b94bb0d1ad6c5667b90621e5699815bb2John McCall#include "clang/AST/DeclCXX.h" 18acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 19acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 20fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2119510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 229c3087b0b0bea2fd782205c1274ebfc4290265e0John McCall#include "clang/Sema/DelayedDiagnostic.h" 23797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 259c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 27e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 28e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 29e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 30e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 31a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic const FunctionType *getFunctionType(const Decl *d, 32a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 34a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek if (const ValueDecl *decl = dyn_cast<ValueDecl>(d)) 356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 36a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const FieldDecl *decl = dyn_cast<FieldDecl>(d)) 376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 38a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 42bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 446217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 45755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 466217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 47d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 48183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 513568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 523568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 54d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 55a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 56a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunction(const Decl *d) { 57a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return getFunctionType(d, false) != NULL; 58a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 59a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 60a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 61d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 62d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 63a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethod(const Decl *d) { 64a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return isFunction(d)|| isa<ObjCMethodDecl>(d); 65d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 663568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 67620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 68620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 69620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 70a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodOrBlock(const Decl *d) { 71620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (isFunctionOrMethod(d)) 72620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 73620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 74620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 75620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 76620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 77620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 78d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return isa<BlockDecl>(d); 79620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 80620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 81d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 82d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 83620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 84a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool hasFunctionProto(const Decl *d) { 85620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 8672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 87620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 88d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian assert(isa<ObjCMethodDecl>(d) || isa<BlockDecl>(d)); 89d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 90d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 913568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 923568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 93d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 94d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 95d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 96a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic unsigned getFunctionOrMethodNumArgs(const Decl *d) { 9789951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 9872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 99d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 100d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 10189951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 1023568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1033568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 104a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodArgType(const Decl *d, unsigned Idx) { 10589951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 10672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 107d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 108d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 109bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11089951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 1113568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1123568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 113a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodResultType(const Decl *d) { 1145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 1155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 1165b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<ObjCMethodDecl>(d)->getResultType(); 1175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1185b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 119a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodVariadic(const Decl *d) { 120d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 12172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1223568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 123d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 124db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 125d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 1263568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1273568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1283568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1293568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 1306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 131183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 132b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 134bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 135506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 136506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 138bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 139506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 140bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 146085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1476217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 148085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 149085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 150085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1516217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 152085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 153085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 154bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 155085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 156465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 157085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 158085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 159085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 160085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 161085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 162e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 163e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 164e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 165e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1663068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1693068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 170bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleExtVectorTypeAttr(Scope *scope, Decl *d, 1719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor const AttributeList &Attr, Sema &S) { 172545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 173545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 174803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 175545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 177bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 1819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1829cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 1839cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 184f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 185f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 186f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 187f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall sizeExpr = S.ActOnIdExpression(scope, SS, id, false, false).takeAs<Expr>(); 1889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 1899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 1909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 1919cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1929cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 1939cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 1949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 1956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 1989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 1999ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 2009cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 201ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 202a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 203bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 2059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 2066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 209803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 211545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2123c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 215bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 217cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt TD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 222803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 223fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 22408631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 226cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt FD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2283c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBAction(Decl *d, const AttributeList &Attr, Sema &S) { 23296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 23396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2343c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 23596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 23696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 237bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 23963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 24063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 241cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBActionAttr(Attr.getLoc(), S.Context)); 24263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 24363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 24463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 24563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_ibaction) << Attr.getName(); 24663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 24763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 24863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBOutlet(Decl *d, const AttributeList &Attr, Sema &S) { 24963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 25063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (Attr.getNumArgs() > 0) { 25163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 25263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 25363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 25463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 25563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 256efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 257efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) { 258cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletAttr(Attr.getLoc(), S.Context)); 25963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 260efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 26163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 26263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 26396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 26496329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 265857e918a8a40deb128840308a318bf623d68295fTed Kremenekstatic void HandleIBOutletCollection(Decl *d, const AttributeList &Attr, 266857e918a8a40deb128840308a318bf623d68295fTed Kremenek Sema &S) { 267857e918a8a40deb128840308a318bf623d68295fTed Kremenek 268857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 269a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 270857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 271857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 272857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 273857e918a8a40deb128840308a318bf623d68295fTed Kremenek 274857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 275857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 276857e918a8a40deb128840308a318bf623d68295fTed Kremenek if (!(isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d))) { 277857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 278857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 279857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 2803a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ValueDecl *VD = dyn_cast<ValueDecl>(d)) 2813a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 2823a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2833a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 2843a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2853a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2863a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(d)) 2873a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 2883a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2893a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 2903a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2913a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2923a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 293a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 294a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 295a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 2963a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 297b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 298a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.getScopeForContext(d->getDeclContext()->getParent())); 299a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 300a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 301a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 302a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 303b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 304a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 305a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 306a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 307a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 308a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 309a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 310a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 311a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 312a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 313cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getLoc(), S.Context, 314cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt QT)); 315857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 316857e918a8a40deb128840308a318bf623d68295fTed Kremenek 317eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 318bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 319bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 320d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 321fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3225dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 323eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 324eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 325bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 326d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 327eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 328eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 329eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 330bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 331eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 332eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 333bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 334bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 335eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 336f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 337eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 338ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 339ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 340fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 341fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 342eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 343eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 344bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 345eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 346bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 347eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 348fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 34930bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 350eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 351eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 352bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 353465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 354eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 355eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 356bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump QualType T = getFunctionOrMethodArgType(d, x); 357dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 358eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 359c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 360fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3617fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 362eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 363bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 364eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 365eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 366bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 367bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 368bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 3697fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 37046bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 37146bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 372dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 373d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 37446bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 375bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3761db5d140b24bd181644135446fdaca75d8396aa4Ted Kremenek // No pointer arguments? The attribute in this case is 3771db5d140b24bd181644135446fdaca75d8396aa4Ted Kremenek // trivially satisfied. 37860acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 37960acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 38060acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 38160acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 38260acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3837fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 38460acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 385eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3867fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3877fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3887fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 389dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 390cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NonNullAttr(Attr.getLoc(), S.Context, start, 391cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 392eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 393eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 394dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenekstatic void HandleOwnershipAttr(Decl *d, const AttributeList &AL, Sema &S) { 395dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 396dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 397dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 398dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 399dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 400dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 4012a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 4022a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 403dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 404dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 405dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 406dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 407dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 408dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 409dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 410cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 4112a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 4122a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 413cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 414dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 415dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 416dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 417dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4182a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4192a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 420cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 421dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 422dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 423dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 424dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4252a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4262a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 427cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 428dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 429dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 430dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 431dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 432dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4332a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4342a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4352a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 4362a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 437dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 438dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 439dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!isFunction(d) || !hasFunctionProto(d)) { 440dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) << AL.getName() 441dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << 0 /*function*/; 442dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 443dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 444dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 445dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned NumArgs = getFunctionOrMethodNumArgs(d); 446dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 447dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 448dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 449dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 450dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 451dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 452dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 453dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 454dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 4552a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 4562a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 457dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 458dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(*I); 459dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 460dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 461dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 462dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 463dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 464dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 465dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 466dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 467dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 468dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 469dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 470dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 471dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 472dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 473dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 475dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 476cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 477cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 478dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek QualType T = getFunctionOrMethodArgType(d, x); 480dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 481dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 482dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 483cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 484dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 485dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 486dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 487dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 488dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 489dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 490cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 491dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 492dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 493dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(AL.getArg(0)); 494dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 495dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 496dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 497dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 498dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 499dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 500dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 501dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 502dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 503dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 504dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5052a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 5062a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 507dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 508dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 509dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 510cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 511cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i = d->specific_attr_begin<OwnershipAttr>(), 512cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt e = d->specific_attr_end<OwnershipAttr>(); 513cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 514cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 515cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 516cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 517cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 518cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 519cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 520dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 521dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 522dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 523dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 524dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 525dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 526dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 527dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 528dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 529dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 530cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 531cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 532cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 533cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 534dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 535cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 536cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 537cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 538dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 539dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 54011e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic bool isStaticVarOrStaticFunciton(Decl *D) { 54111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (VarDecl *VD = dyn_cast<VarDecl>(D)) 542d931b086984257de68868a64a235c2b4b34003fbJohn McCall return VD->getStorageClass() == SC_Static; 54311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 544d931b086984257de68868a64a235c2b4b34003fbJohn McCall return FD->getStorageClass() == SC_Static; 54511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 54611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 54711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 54811e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 54911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 55011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 55111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 55211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 55311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 55411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 55511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 55611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 55711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 55811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 55911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 56011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 56111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 56211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 56311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 56411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 5657a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl const DeclContext *Ctx = d->getDeclContext()->getRedeclContext(); 5667a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 5677a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 5687a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl dyn_cast<NamedDecl>(d)->getNameAsString(); 5697a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 57011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 57111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 57211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 57311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 57511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 57611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 57811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 58011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 58111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 58211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 58311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 58411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 58511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 58611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 58711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 58811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 58911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isStaticVarOrStaticFunciton(d)) { 59111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static) << 59211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(d)->getNameAsString(); 59311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 59411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 59511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 59711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 59811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 59911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 60011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 60111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 60211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 60311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 60411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 60511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 60611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 60711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 60811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 60911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 61011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 61111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 612cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, Str->getString())); 61311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 61411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 615cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) WeakRefAttr(Attr.getLoc(), S.Context)); 61611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 61711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 618803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 620545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 6213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 624bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 625545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 6266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 6276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 628bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 630fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 6326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 634bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 636bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 637cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, Str->getString())); 6386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 640bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 641af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 642af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 643af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 6443c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 645af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 646af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 6475bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 648c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 6495bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 6505dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 6515bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 6525bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 653bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 654cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getLoc(), S.Context)); 655af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 656af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 65776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 65876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn // check the attribute arguments. 65976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 66076168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 66176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 66276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 6631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6642cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 6651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 6662cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 667cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) MallocAttr(Attr.getLoc(), S.Context)); 6682cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 6692cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 670fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 671fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 6722cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 67376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 67476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 675b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 676b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek /* Diagnostics (if any) was emitted by Sema::ProcessFnAttr(). */ 677b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek assert(Attr.isInvalid() == false); 678b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) NoReturnAttr(Attr.getLoc(), S.Context)); 679b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 680b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 681b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 682b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek Sema &S) { 683b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 684b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 685b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 686b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 687545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 688e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 689b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 6906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 691b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 69219c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 69319c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 6943ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 6953ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 696e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 697e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 698b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 699b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek << Attr.getName() << 0 /*function*/; 700b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 70119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 7026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 703b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 704b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getLoc(), S.Context)); 7056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 70735cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 70835cc9627340b15232139b3c43fcde5973e7fad30John Thompsonstatic void HandleVecReturnAttr(Decl *d, const AttributeList &Attr, 70935cc9627340b15232139b3c43fcde5973e7fad30John Thompson Sema &S) { 71035cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 71135cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 71235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 71335cc9627340b15232139b3c43fcde5973e7fad30John Thompson According to the PPU ABI specifications, a class with a single member of vector type is returned in 71435cc9627340b15232139b3c43fcde5973e7fad30John Thompson memory when used as the return value of a function. This results in inefficient code when implementing 71535cc9627340b15232139b3c43fcde5973e7fad30John Thompson vector classes. To return the value in a single vector register, add the vecreturn attribute to the class 71635cc9627340b15232139b3c43fcde5973e7fad30John Thompson definition. This attribute is also applicable to struct types. 71735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 71835cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 71935cc9627340b15232139b3c43fcde5973e7fad30John Thompson 72035cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 72135cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 72235cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 72335cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 72435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 72535cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 72635cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 72735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 72835cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 72935cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 73035cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 73135cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 73201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<RecordDecl>(d)) { 73335cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 73435cc9627340b15232139b3c43fcde5973e7fad30John Thompson << Attr.getName() << 9 /*class*/; 73535cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 73635cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 73735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 73835cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (d->getAttr<VecReturnAttr>()) { 73935cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 74035cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 74135cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 74235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 74301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson RecordDecl *record = cast<RecordDecl>(d); 74401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 74501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 74601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 74701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 74801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 74901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 75001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 75101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 75201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 75301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 75401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 75501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 75601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson for (RecordDecl::field_iterator iter = record->field_begin(); iter != record->field_end(); iter++) { 75701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 75801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 75901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 76001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 76101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 76201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 76301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 764cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VecReturnAttr(Attr.getLoc(), S.Context)); 76535cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 76635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 767bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 768bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 769bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 77004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << Attr.getName() << 8 /*function, method, or parameter*/; 771bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 772bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 773bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 774bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 775bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 77673798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 77773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 77873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 7793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 78073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 78173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 782bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 783aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d) && 784aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall !isa<TypeDecl>(d)) { 785fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7865dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 78773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 78873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 789bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 790cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UnusedAttr(Attr.getLoc(), S.Context)); 79173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 79273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 793b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 794b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 795b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 796b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 797b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 798b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 799bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 800b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 801186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 802b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 803b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 804b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 805b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 806b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8075dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 808b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 809b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 810bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 811cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UsedAttr(Attr.getLoc(), S.Context)); 812b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 813b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 8143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8153068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 8163068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 817fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 818fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 8193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 820bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8213068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8223068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 8233068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 8243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 8253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 826ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 827ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 828fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8293c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 8303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8313068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 834bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 835c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 836fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8375dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8383068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8393068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 841cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstructorAttr(Attr.getLoc(), S.Context, priority)); 8423068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 8433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8453068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 8463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 847fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 848fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 8493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 850bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8513068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8523068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 8533068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 8543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 8553068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 856ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 857ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 858fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8593c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 8603068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8623068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 864bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 8656782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 866fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8675dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8693068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8703068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 871cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) DestructorAttr(Attr.getLoc(), S.Context, priority)); 8723068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 8733068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 874803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 876545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8773c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 880bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 881cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) DeprecatedAttr(Attr.getLoc(), S.Context)); 8826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 884bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 885bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 886bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 887bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 888bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 889bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 890bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 891cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UnavailableAttr(Attr.getLoc(), S.Context)); 892bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 893bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 894803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 896545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 8973c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 8986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 900bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 901545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 9026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 9036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 904bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 906fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 9073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 9086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 910bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 911c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 912cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 913bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 914c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 915cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 916c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 917cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 918c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 919cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 920c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 921cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 9226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 92308631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 9246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 926bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 927cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VisibilityAttr(Attr.getLoc(), S.Context, type)); 9286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9300db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 9310db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 9320db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 9330db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9340db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 9350db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 936bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9370db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 9380db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 9390db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 9400db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 9410db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 942bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 943cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getLoc(), S.Context)); 9440db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 9450db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 9460db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 947fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 9482b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 949fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 950fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 9510db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 952fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 953fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 9546217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 955fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 956fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 957fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 958fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 959cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getLoc(), S.Context)); 960fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 961fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 962bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 963f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 964f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 9652b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 966f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 967f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 968f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 969f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 970f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 971f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 972f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 973f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 974cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) OverloadableAttr(Attr.getLoc(), S.Context)); 975f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 976f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 9779eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 978bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 979fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 9803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 9819eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9829eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 983bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9849eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 9853c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 9869eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9879eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 988bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 989cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 99092e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 9919eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 9929eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 993fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 9943c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 9959eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9969eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 997bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 998cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BlocksAttr(Attr.getLoc(), S.Context, type)); 9999eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 10009eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 1001770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1002770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1003770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1004fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 1005fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 1006770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1007bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1008bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1009770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 1010770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 1011770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 1012770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1013ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1014ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1015fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10163c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1017770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1018770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1019770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 1020bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1021770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 1022fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1023fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1024770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1025770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1026770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1027770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1028770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1029770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 1030770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 1031770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1032ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1033ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1034fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10353c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1036770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1037770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1038770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1039bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1040770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1041770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1042770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1043fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1044fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1045770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1046770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1047770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1048770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1049770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 1050183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1051897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1052bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1053897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1054897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1055897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1056897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1057bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1058897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 10593bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1060770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1061bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1062770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 1063770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 10643bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1065770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 10662f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 10672f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 1068bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1069bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 10702f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 10712f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 10722f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1073daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 1074bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 1075183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 10762f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 10773bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 10783bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 10792f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 10802f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1081ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 10822f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1083ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 10842f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 10852f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1086770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1087fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1088ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 1089770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1090770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1091cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) SentinelAttr(Attr.getLoc(), S.Context, sentinel, nullPos)); 1092770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1093770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1094026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 1095026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1096026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1097026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1098026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1099026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1100026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1101f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1102026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11035dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1104026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1105026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1106bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1107f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1108f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1109f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1110f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1111f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1112f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1113f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1114f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1115f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1116f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1117f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1118f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1119cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getLoc(), S.Context)); 1120026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1121026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1122026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 11236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1124545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 11253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11286e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1129f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian /* weak only applies to non-static declarations */ 113011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (isStaticVarOrStaticFunciton(D)) { 1131f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_weak_static) << 1132f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian dyn_cast<NamedDecl>(D)->getNameAsString(); 1133f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1134f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1135f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 11366e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 11376e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 11386e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11395dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 11406e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 11416e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1142bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1143cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakAttr(Attr.getLoc(), S.Context)); 11446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11466e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 11476e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 11486e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 11496e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11506e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1151bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 11526e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11536e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 11546e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 11556e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 11566e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 11576e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 115806a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis isDef = FD->hasBody(); 1159d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 1160d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 11611c90f4dc686ab872013544664c797604a309c563Mike Stump return; 11625f8f8571c52dbf12fdefb15d2fedbcccb212c15cFariborz Jahanian } else if (!(S.LangOpts.ObjCNonFragileABI && isa<ObjCInterfaceDecl>(D))) { 1163c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian // Don't issue the warning for darwin as target; yet, ignore the attribute. 11643be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian if (S.Context.Target.getTriple().getOS() != llvm::Triple::Darwin || 1165c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian !isa<ObjCInterfaceDecl>(D)) 1166c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11673be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian << Attr.getName() << 2 /*variable and function*/; 11683be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian return; 11696e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 11706e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11716e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 11726e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 1173bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 11746e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 11756e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 11766e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 11776e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 11786e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1179cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakImportAttr(Attr.getLoc(), S.Context)); 11806e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 11816e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 11836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 11846f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 11856f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 11862b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11876f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 11886f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 11896f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 11906f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 11916f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 11926f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Expr *E = static_cast<Expr *>(Attr.getArg(i)); 11936f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1194ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1195ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 11966f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 11976f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 11986f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 11996f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 12006f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 12016f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1202cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getLoc(), S.Context, 1203cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 12046f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 12056f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 12066f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 1207026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 120817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 120917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 121017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 121117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 121217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 121317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 121417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 121517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 1216797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1217797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 121817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1219797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 122017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 122117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 12221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1223797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1224bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1225a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1226a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1227a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1228797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1229797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1231a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1232a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1233a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1234a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1235a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1236a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 1237cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) SectionAttr(Attr.getLoc(), S.Context, SE->getString())); 123817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 123917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 12406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1241803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1243545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 12443c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1247bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1248cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoThrowAttr(Attr.getLoc(), S.Context)); 12496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1251232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1252232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1253232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 12543c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1255232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1256232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1257bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1258cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstAttr(Attr.getLoc(), S.Context)); 1259232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1260232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1261232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1262232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1263232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 12643c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1265232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1266232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1267bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1268cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) PureAttr(Attr.getLoc(), S.Context)); 1269232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1270232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1271f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1272bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1273f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1274f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1275f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1276bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1277f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1278f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1279f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1280f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1281bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1282f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1283bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1284f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1285f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1286f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1287f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1288bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1289f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1290c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1291c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: The lookup source location should be in the attribute, not the 1292c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // start of the attribute. 1293f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1294c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor = S.LookupSingleName(S.TUScope, Attr.getParameterName(), Attr.getLoc(), 1295f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall Sema::LookupOrdinaryName); 1296f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 129789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 1298f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1299f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1300f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1301bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1302f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1303f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 130489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 1305f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1306f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1307f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1308f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1309f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 131089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 1311f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1312f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1313f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1314bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 131589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 131689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 131789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 131889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1319d5e3e8ec50d6ea481b3bc841dcbe853175d05122Eli Friedman if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 1320bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 132189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 132289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 132389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 132489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1325bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1326cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CleanupAttr(Attr.getLoc(), S.Context, FD)); 1327f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1328f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1329bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1330bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1331bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13325b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 13335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13345b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 13365b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 13375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 13385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << Attr.getName() << 0 /*function*/; 13395b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13405b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1341bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // FIXME: in C++ the implicit 'this' function parameter also counts. this is 1342bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // needed in order to be compatible with GCC the index must start with 1. 13435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned NumArgs = getFunctionOrMethodNumArgs(d); 13445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 13455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 13465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 13475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1348ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1349ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 13505b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 13515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 13525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13535b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1354bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13555b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 13565b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 13575b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 13585b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13595b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1360bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13615b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1362bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13635b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 13645b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1365bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13665b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 13675b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 13685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 13695b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 13706217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 13715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 13725b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1373bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 13745b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 13755b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1376bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 13775b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 13785b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 13795b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 13805b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 13816217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 13825b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 13835b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1384bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 13855b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 13865b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1387bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1388bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1389cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FormatArgAttr(Attr.getLoc(), S.Context, Idx.getZExtValue())); 13905b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 13915b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 13922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 13932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 13942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 13952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 13962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 13973c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 13982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 13992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 14002b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 14012b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 14022b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 14032b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 14042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 14052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 14062b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 14072b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 14082b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 14092b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 14102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 14112b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 14122b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 14132b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 14142b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 14152b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 14162b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "zcmn_err") 14172b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 14182b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1419bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1420bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 14213c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 14223c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 14232b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 14242b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 14252b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1426521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1427521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 1428521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanianstatic void HandleInitPriorityAttr(Decl *d, const AttributeList &Attr, 1429521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Sema &S) { 1430521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1431521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1432521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1433521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1434521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1435b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!isa<VarDecl>(d) || S.getCurFunctionOrMethodDecl()) { 1436b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1437b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1438b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1439b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1440b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian QualType T = dyn_cast<VarDecl>(d)->getType(); 1441b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1442b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1443b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1444b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1445b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1446b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1447b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1448b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1449521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1450521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1451521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1452521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1453521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1454521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Expr *priorityExpr = static_cast<Expr *>(Attr.getArg(0)); 1455b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1456521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1457521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1458521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1459521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1460521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1461521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1462521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1463521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 14649f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1465521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1466521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1467521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1468521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1469521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1470521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1471cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) InitPriorityAttr(Attr.getLoc(), S.Context, prioritynum)); 1472521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1473521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1474bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1475bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1476803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 14776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1478545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1479fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 14803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 14816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1484545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 14853c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 14866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1489620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1490fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 14915dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 14926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14953568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 14966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 14976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 149801eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 14996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 15012b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 15022b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 15032b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 15042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 15052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 15063c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 15073c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 15083c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 15093c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 15102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1511fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 151201eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 15136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1517545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1518803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1519ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1520ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1521fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15223c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 15236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15264fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // FIXME: We should handle the implicit 'this' parameter in a more generic 15274fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // way that can be used for other arguments. 15284fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson bool HasImplicitThisParam = false; 15294fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(d)) { 15304fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (MD->isInstance()) { 15314fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson HasImplicitThisParam = true; 15324fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson NumArgs++; 15334fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 15344fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 15351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1537fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 15383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 15396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 15436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1544bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15454a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 15464a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 15474a2614e94672c47395abcde60518776fbebec589Sebastian Redl S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 15484a2614e94672c47395abcde60518776fbebec589Sebastian Redl << "a string type" << IdxExpr->getSourceRange(); 15494a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 15504a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 15514a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 15524a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 15531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 15553568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 15566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15572b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1558085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1559fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1560fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1561085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1562085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 15632b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1564390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1565390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1566803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1567390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1568fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1569fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 15706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1571bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 15736217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1574390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1575fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1576fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 15776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1581545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1582803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1583ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1584ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1585fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15863c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 15876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 15916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 15923568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 15936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 15946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1595803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 15966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16003c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 16013c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 16022b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 16036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1604fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1605fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 16066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 16096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1610fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 16113c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 16126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1615cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FormatAttr(Attr.getLoc(), S.Context, Format, 1616cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 16172b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 16186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16200b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 16210b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 16226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1623545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 16243c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 16256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16280c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 16290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1630bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 16310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 16320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 16330c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 16340c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 16350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 16360c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1637fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16385dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 16396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1643bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 16440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 16450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 16470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 164817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 164917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 16500c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 16510c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 16520c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16530c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1654bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 16550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 16560c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 165790cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1658bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 165990cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 166090cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 16610c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16620c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1663bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 16640c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 16650c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 16660c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 16670c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 16680c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 16690c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 16700c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 16710c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1672bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 16730c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1674bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 16750c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 16760c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 16770c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1678bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 16790c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 16800c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1681bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1682bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1683bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 16846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1685cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getLoc(), S.Context)); 16866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16880b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 16896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1690545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 16913c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1694797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1695797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1696bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 16986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 16996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1700797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 17016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1703cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AnnotateAttr(Attr.getLoc(), S.Context, SE->getString())); 17046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 17056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17064ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthstatic void HandleAlignedAttr(Decl *D, const AttributeList &Attr, Sema &S) { 17076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1708545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 17093c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 17106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1712bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1713bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1714bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1715bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 17166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1717545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 1718cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) AlignedAttr(Attr.getLoc(), S.Context, true, 0)); 17194ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 17204ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 17214ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 17224ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth S.AddAlignedAttr(Attr.getLoc(), D, static_cast<Expr *>(Attr.getArg(0))); 17234ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 17244ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 17254ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 17264ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 17274ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 1728cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 17296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1731bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1732cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 173349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 17344ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 17354ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 17364ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 173749e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 173849e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1739396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 17404ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 17414ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 1742396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1743396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1744396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 1745cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 1746cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 1747cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1748cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Huntvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, TypeSourceInfo *TS) { 1749cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 1750cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 1751cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, false, TS)); 1752cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 17536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1754fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1755bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 1756bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 1757fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1758bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 1759bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 1760bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 17610b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1762fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1763fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1764fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1765fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1766fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 17673c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1768fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1769fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1770fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1771fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1772fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 17730b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1774fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1775fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1776210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 177701eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 1778fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1779fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1780210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 1781210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 1782fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1783fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1784fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 178573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1786210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 1787fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 178873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 178973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 179073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 179173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 179273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 179373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 179473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 179573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 179673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 179773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 179873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 179973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 180073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 180173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 180273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 180373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1804fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1805fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1806fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1807fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1808210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 18090b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1810210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 18110b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1812fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1813fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1814210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 18150b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1816fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1817fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1818fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1819fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1820fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1821fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1822fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1823fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1824fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1825fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1826fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1827fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1828fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 182973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1830183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 183173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 183273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 18332ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 183473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 183573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 183673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 183773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 183873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 183973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 184073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 184173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 184273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1843390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 1844390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 1845390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 1846390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 1847f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1848f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1849fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1850fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1851fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 18523c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1853fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1854fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 18553c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1856fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1857fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 185873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 185973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 186073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 186173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1862fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 18630b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1864fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18650b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1866fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1867fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 186873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 186973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 187073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 187173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1872fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 18730b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1874fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18750b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1876fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1877fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1878fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 18790b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1880fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 18810b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1882fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18830b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1884fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1885fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1886fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 18870b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1888fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 1889aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1890aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 1891aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1892aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 1893fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1894aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1895aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 1896aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1897aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 1898fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 189973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 190073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 190173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1902f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1903f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1904f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1905f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1906f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1907f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 1908f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 1909f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 1910f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 191173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1912fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1913fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 191473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 191573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 1916fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1917fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1918fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1919ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1920ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 1921a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 1922ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 1923fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1924fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 19250744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 19261feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1927d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1928d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1929d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1930d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1931d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1932e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 19335bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 1934d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19355dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1936d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1937d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1938bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1939cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoDebugAttr(Attr.getLoc(), S.Context)); 1940d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1941d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 19421feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 19435bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 19445bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 19455bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19465bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 19475bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1948bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1949c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 19505bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19515dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 19525bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 19535bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1954bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1955cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInlineAttr(Attr.getLoc(), S.Context)); 19565bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 19575bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 19587255a2d997b15beae82e627052fdb1b2474495c2Chris Lattnerstatic void HandleNoInstrumentFunctionAttr(Decl *d, const AttributeList &Attr, 19597255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner Sema &S) { 19607255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 19617255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 19627255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19637255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 19647255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 19657255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 19667255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (!isa<FunctionDecl>(d)) { 19677255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19687255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner << Attr.getName() << 0 /*function*/; 19697255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 19707255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 19717255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1972cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getLoc(), S.Context)); 19737255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 19747255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1975cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 197626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 197726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 197826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 197926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 198026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1981bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1982c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 1983c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 198426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19855dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 198626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 198726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1988bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19890130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 1990cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 1991c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 1992c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 1993bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1994cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) GNUInlineAttr(Attr.getLoc(), S.Context)); 199526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 199626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1997e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnarastatic void HandleCallConvAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1998e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Diagnostic is emitted elsewhere: here we store the (valid) Attr 1999e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 2000e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara assert(Attr.isInvalid() == false); 2001e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2002e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara switch (Attr.getKind()) { 2003e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 2004cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FastCallAttr(Attr.getLoc(), S.Context)); 2005e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2006e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 2007cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) StdCallAttr(Attr.getLoc(), S.Context)); 2008e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2009f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2010cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ThisCallAttr(Attr.getLoc(), S.Context)); 201104633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 2012e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 2013cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CDeclAttr(Attr.getLoc(), S.Context)); 2014e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 201552fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 201652fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik d->addAttr(::new (S.Context) PascalAttr(Attr.getLoc(), S.Context)); 201752fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 2018e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2019e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2020e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2021e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2022e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2023e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2024ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2025ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 2026ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 202755d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2028ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2029ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 203055d3aaf9a537888734762170823daf750ea9036dEli Friedman 2031ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 2032ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 20335dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 2034ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2035ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 203655d3aaf9a537888734762170823daf750ea9036dEli Friedman 203755d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 203855d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2039ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2040ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 204155d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 204255d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 204355d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 204455d3aaf9a537888734762170823daf750ea9036dEli Friedman } 204555d3aaf9a537888734762170823daf750ea9036dEli Friedman 2046264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov if (S.Context.Target.getRegParmMax() == 0) { 2047264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 204855d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 204955d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 205055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 205155d3aaf9a537888734762170823daf750ea9036dEli Friedman 2052348f28ab6a574df6501ff8b76f9fc6753c155badAnton Korobeynikov if (NumParams.getLimitedValue(255) > S.Context.Target.getRegParmMax()) { 2053264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2054264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov << S.Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 205555d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 205655d3aaf9a537888734762170823daf750ea9036dEli Friedman } 205755d3aaf9a537888734762170823daf750ea9036dEli Friedman 2058cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) RegparmAttr(Attr.getLoc(), S.Context, 2059cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NumParams.getZExtValue())); 2060ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2061ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 2062bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleFinalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2063bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // check the attribute arguments. 2064bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (Attr.getNumArgs() != 0) { 2065bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2066bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2067bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 2068bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2069bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isa<CXXRecordDecl>(d) 2070bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt && (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual())) { 2071bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), 2072bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 2073bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt : diag::warn_attribute_wrong_decl_type) 2074bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt << Attr.getName() << 7 /*virtual method or class*/; 2075bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2076bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 20777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20787725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 20797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20807725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<FinalAttr>()) { 20817725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "final"; 20827725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20837725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 2084bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2085cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FinalAttr(Attr.getLoc(), S.Context)); 2086bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 2087bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 20880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 20897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt// C++0x member checking attributes 20907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 20917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleBaseCheckAttr(Decl *d, const AttributeList &Attr, Sema &S) { 20937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 20947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXRecordDecl>(d)) { 20997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 21007725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 21017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 21027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 9 /*class*/; 21037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<BaseCheckAttr>()) { 21077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "base_check"; 21087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2111cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BaseCheckAttr(Attr.getLoc(), S.Context)); 21127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleHidingAttr(Decl *d, const AttributeList &Attr, Sema &S) { 21157725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 21167725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21177725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<RecordDecl>(d->getDeclContext())) { 21217725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 21227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 21237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 21247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 21257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 11 /*member*/; 21267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21277725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21287725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21297725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 21307725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<HidingAttr>()) { 21327725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "hiding"; 21337725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21347725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21357725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2136cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) HidingAttr(Attr.getLoc(), S.Context)); 21377725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21387725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21397725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleOverrideAttr(Decl *d, const AttributeList &Attr, Sema &S) { 21407725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 21417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual()) { 21467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 21477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 21487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 21497725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 21507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 10 /*virtual method*/; 21517725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21547725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 21557725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21567725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<OverrideAttr>()) { 21577725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "override"; 21587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2161cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OverrideAttr(Attr.getLoc(), S.Context)); 21627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 2165b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2166b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2167b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2168b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 2169b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 2170b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 21715dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 2172bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21735dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 21745dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 21755dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 21765dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 21775dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 217821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 217921531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 218021531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName() << 3 /* function or method */; 2181b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2182b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2183bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21846217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAs<PointerType>() 2185183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall || RetTy->getAs<ObjCObjectPointerType>())) { 218621531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 218721531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 218821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName(); 2189bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 21905dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2191bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2192b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 2193b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2194b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2195b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 219631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2197cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getLoc(), S.Context)); 219831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 219931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 2200cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getLoc(), S.Context)); 220131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2202b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2203cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getLoc(), S.Context)); 2204b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2205b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2206cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getLoc(), S.Context)); 2207b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2208b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2209b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2210b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2211f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2212f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 2213f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis Attr.getKind() == AttributeList::AT_dllexport; 2214f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2215f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2216b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 22170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 22180744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 22190744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 2220a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 2221803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 2222bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 2223bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 2224bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void ProcessDeclAttribute(Scope *scope, Decl *D, 2225bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const AttributeList &Attr, Sema &S) { 2226e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (Attr.isInvalid()) 2227e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2228e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2229f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 2230f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis // FIXME: Try to deal with other __declspec attributes! 2231290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman return; 2232803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 223363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 2234857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 2235857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 2236857e918a8a40deb128840308a318bf623d68295fTed Kremenek HandleIBOutletCollection(D, Attr, S); break; 2237803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2238ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 22396e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 2240bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2241bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2242803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 22437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 22447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 2245bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 2246af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 2247b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 2248bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 22497725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 22507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_base_check: HandleBaseCheckAttr (D, Attr, S); break; 2251bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 22527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 22537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 22547725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 22557725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 22563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 22579cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 22583068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 22597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_final: HandleFinalAttr (D, Attr, S); break; 22607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 22617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 22627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 22637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_hiding: HandleHidingAttr (D, Attr, S); break; 22647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 22657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 22667725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 2267dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2268dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2269dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 2270dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek HandleOwnershipAttr (D, Attr, S); break; 22717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 22727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 22737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_override: HandleOverrideAttr (D, Attr, S); break; 227435cc9627340b15232139b3c43fcde5973e7fad30John Thompson case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break; 2275b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2276b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 227731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 227831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2279b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2280b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2281b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 2282b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 22836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 22846f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 22856f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2286521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 2287521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian HandleInitPriorityAttr(D, Attr, S); break; 2288521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 22897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 22907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 22917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 22927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 22937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 22947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 2295026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 2296026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 22977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 229811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 22997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 2300803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 2301803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 2302803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 23030db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 23040db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 23050db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 2306f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 23077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 23087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 23097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 23107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 23117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 23127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 23137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 23147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 23157725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 2316bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 231705f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 231805f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 23197255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 23207255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner HandleNoInstrumentFunctionAttr(D, Attr, S); 23217255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 232204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 232304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 232404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2325f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 232652fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2327e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara HandleCallConvAttr(D, Attr, S); 232804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 2329803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 233082d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 233182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 233282d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 23337d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 23347d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 2335803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 2336803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2337803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2338803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2339803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 2340803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 23419cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, const AttributeList *AttrList) { 234211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 234311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola ProcessDeclAttribute(S, D, *l, *this); 234411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 234511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 234611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 234711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 234811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 234911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 235011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 2351dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 235211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 2353803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2354803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2355803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2356e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 2357e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 23581eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 23597b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 2360e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 2361e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 2362e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 2363e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 2364a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 2365b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 2366b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 2367b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewFD->setQualifierInfo(FD->getQualifier(), FD->getQualifierRange()); 2368b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2369e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 2370e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 2371e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn VD->getLocation(), II, 2372a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 237316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 237416573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 2375b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 2376b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 2377b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewVD->setQualifierInfo(VD->getQualifier(), VD->getQualifierRange()); 2378b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2379e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2380e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 2381e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2382e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 2383e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 2384e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 23857b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 2386c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 2387c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 2388c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 2389c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 2390c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 2391cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 2392cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 2393cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2394c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 2395c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 2396c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 2397c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 2398c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 2399c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 2400c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 2401c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 2402cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2403e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2404e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2405e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 24060744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 24070744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 24080744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 24099cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD) { 2410e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn // Handle #pragma weak 2411e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 2412e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (ND->hasLinkage()) { 2413e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakInfo W = WeakUndeclaredIdentifiers.lookup(ND->getIdentifier()); 2414e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (W != WeakInfo()) { 24157b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn // Identifier referenced by #pragma weak before it was declared 24167b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn DeclApplyPragmaWeak(S, ND, W); 2417e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakUndeclaredIdentifiers[ND->getIdentifier()] = W; 2418e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2419e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2420e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2421e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 24220744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 24230744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 24249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2425bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24260744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 24270744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 24280744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 24290744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 24300744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 24310744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 24329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2433bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24340744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 24350744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 24369cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 24370744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 243854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 243954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// PushParsingDeclaration - Enter a new "scope" of deprecation 244054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// warnings. 244154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// 244254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// The state token we use is the start index of this scope 244354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// on the warning stack. 2444f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallSema::ParsingDeclStackState Sema::PushParsingDeclaration() { 244554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth++; 24462f514480c448708ec382a684cf5e035d3a827ec8John McCall return (ParsingDeclStackState) DelayedDiagnostics.size(); 244754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 244854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 2449d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallvoid Sema::PopParsingDeclaration(ParsingDeclStackState S, Decl *D) { 245054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall assert(ParsingDeclDepth > 0 && "empty ParsingDeclaration stack"); 245154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth--; 245254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 24532f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics.empty()) 245454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 245554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 245654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall unsigned SavedIndex = (unsigned) S; 24572f514480c448708ec382a684cf5e035d3a827ec8John McCall assert(SavedIndex <= DelayedDiagnostics.size() && 245854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall "saved index is out of bounds"); 245954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 246058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall unsigned E = DelayedDiagnostics.size(); 246158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 24622f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 24632f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 24642f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D) { 24652f514480c448708ec382a684cf5e035d3a827ec8John McCall // We really do want to start with 0 here. We get one push for a 24662f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 24672f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 24682f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 24692f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 24702f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 247158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = 0; I != E; ++I) { 24722f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics[I].Triggered) 24732f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 24742f514480c448708ec382a684cf5e035d3a827ec8John McCall 24752f514480c448708ec382a684cf5e035d3a827ec8John McCall switch (DelayedDiagnostics[I].Kind) { 24762f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 24772f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedDeprecationCheck(DelayedDiagnostics[I], D); 24782f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 24792f514480c448708ec382a684cf5e035d3a827ec8John McCall 24802f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 24812f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedAccessCheck(DelayedDiagnostics[I], D); 24822f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 248354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 248454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 248554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 248654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 248758e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 248858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = SavedIndex; I != E; ++I) 248958e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall DelayedDiagnostics[I].destroy(); 249058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 24912f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.set_size(SavedIndex); 24922f514480c448708ec382a684cf5e035d3a827ec8John McCall} 24932f514480c448708ec382a684cf5e035d3a827ec8John McCall 24942f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 24952f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 24962f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D->hasAttr<DeprecatedAttr>()) 24972f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 24982f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 24992f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 25002f514480c448708ec382a684cf5e035d3a827ec8John McCall} 25012f514480c448708ec382a684cf5e035d3a827ec8John McCall 25029c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 25032f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 25042f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 25052f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 25062f514480c448708ec382a684cf5e035d3a827ec8John McCall 25072f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 25082f514480c448708ec382a684cf5e035d3a827ec8John McCall Diag(DD.Loc, diag::warn_deprecated) 25092f514480c448708ec382a684cf5e035d3a827ec8John McCall << DD.DeprecationData.Decl->getDeclName(); 251054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 251154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 251254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallvoid Sema::EmitDeprecationWarning(NamedDecl *D, SourceLocation Loc) { 251354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 251454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (ParsingDeclDepth) { 25152f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.push_back(DelayedDiagnostic::makeDeprecation(Loc, D)); 251654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 251754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 251854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 251954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 252054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 252154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 252254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 252354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 252454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 2525